Press the "Shift" button five times in a row to turn off sticky keys.
Open the "Start" menu and then click "Control Panel."
Click "Ease of Access Center" from within the Control Panel window.
Click "Make The Keyboard Easier To Use" from within the Ease of Access Center window.
Remove the check-mark beside "Turn On Sticky Keys" to prevent sticky keys from being accidentally turned on.
Click "Apply" to save your changes and then click "OK" to close the window.